High definition televisions, or HDTVs, have much higher picture resolution than standard definition televisions and offer better viewing clarity and sound. Many stations have an HDTV broadcast, giving you the option to watch the better quality video. Many movies are also available for HDTVs. However, before you can begin enjoying the benefits of high definition, you need your home to be properly wired.
Purchase a high definition television. Without it, every other step is pointless. There are currently two main kinds of HDTV: 720 and 1080. 1080 offers better image quality but typically costs more. Some models have video that is interlaced, 1080i, or progressive, 1080p. This relates to the way the image is displayed on the screen. Interlaced televisions are more likely to flicker with fast moving images, such as action movies or sports.
Order the high definition package from your cable or satellite provider. This typically runs around $10 extra a month. You may or may not need an HD receiver from the company. Satellite TV providers may also require a special satellite dish. If you do not want cable or satellite access, you can watch over-the-air broadcasts in HD with an HD antenna. These antennas connect to an HD television in the same way as a receiver.
Set up an HD receiver in every location where you want to watch television.
Connect either an HDMI cable or component cables to the rear of the HD receiver. Component cables are similar to RCA cables, which are red, white and yellow, only these cables are capable of transmitting the high definition picture and sound. An HDMI cable is one cable that transmits HD video and sound. It is easier to install and can often be cheaper than composite cables.
Plug the other end of the composite cables into the "Video In" port on the HD television. If using HDMI, plug the other end of the cable into an available HDMI port.
Power on both the HD receiver and the HD television. Select the "Menu" button on the HD receiver's remote control. Select the aspect ratio and image quality that is appropriate for your HDTV.